[fahy-sos-tuh-muh s]

adjective Ichthyology.

having the mouth and air bladder connected by an air duct.

Compare physoclistous.

Origin of physostomous

First recorded in 1885–90; physo- + -stomous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for physostomous



(of fishes) having a duct connecting the air bladder to part of the alimentary canalCompare physoclistous

Word Origin for physostomous

C19: from Greek phusa bladder + -stomous, from stoma mouth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012